PUT in place

Reverted to allowing only 'PUT' for a pure RESTful interface, and made a demo editor (very simple) which takes the payload of a COOL folder and uses XSL to create an XHTML form for input of new parameters. The data 'PUT' method I implemented accepts either a file or a string, so it is feasible to use it with an XmlHttpRequest object to PUT a URL with the conventional ?payload=xxxxxx kind of notation. All this is protected with basic authentication over the internal network.

Else Lytken tried it out, it seems ok.